A slice of a ByteArray.

The empty byte sequence.

The empty byte sequence.

Is the byte sequence empty?

The length of a slice of bytes.

Extract the head and tail of the Bytes, returning Nothing if it is empty.

Extract the init and last of the Bytes, returning Nothing if it is empty.

O(n) Returns true if any byte in the sequence satisfies the predicate.

O(n) Returns true if all bytes in the sequence satisfy the predicate.

Create a byte sequence with one byte.

Create a byte sequence with two bytes.

Create a byte sequence with three bytes.

Replicate a byte n times.

Create an unsliced byte sequence with one byte.

Create an unsliced byte sequence with two bytes.

Create an unsliced byte sequence with three bytes.

Variant of replicate that returns a unsliced byte array.

Take bytes while the predicate is true.

Drop bytes while the predicate is true.

O(n) takeWhileEnd p b returns the longest suffix of elements that satisfy predicate p.

O(n) dropWhileEnd p b returns the prefix remaining after dropping characters that satisfy the predicate p from the end of t.

Left fold over bytes, non-strict in the accumulator.

Left fold over bytes, strict in the accumulator.

Right fold over bytes, non-strict in the accumulator.

Right fold over bytes, strict in the accumulator.

Left fold over bytes, strict in the accumulator. The reduction function is applied to each element along with its index.

Is the byte a member of the byte sequence?

Break a byte sequence into pieces separated by the byte argument, consuming the delimiter. This function is a good producer for list fusion. It is common to immidiately consume the results of split with foldl', traverse_, foldlM, and being a good producer helps in this situation.

Note: this function differs from its counterpart in bytestring. If the byte sequence is empty, this returns a singleton list with the empty byte sequence.

Variant of split that returns an array of unsliced byte sequences. Unlike split, this is not a good producer for list fusion. (It does not return a list, so it could not be.) Prefer split if the result is going to be consumed exactly once by a good consumer. Prefer splitU if the result of the split is going to be around for a while and inspected multiple times.

Variant of split that drops the trailing element. This behaves correctly even if the byte sequence is empty. This is a good producer for list fusion. This is useful when splitting a text file into lines. POSIX mandates that text files end with a newline, so the list resulting from split always has an empty byte sequence as its last element. With splitInit, that unwanted element is discarded.

Variant of splitU that drops the trailing element. See splitInit for an explanation of why this may be useful.

Variant of split that returns the result as a NonEmpty instead of []. This is also eligible for stream fusion.

Variant of split that intended for use with stream fusion rather than build-foldr fusion.

Split a byte sequence on the first occurrence of the target byte. The target is removed from the result. For example:

>>> split1 0xA [0x1,0x2,0xA,0xB]
Just ([0x1,0x2],[0xB])

Split a byte sequence on the first and second occurrences of the target byte. The target is removed from the result. For example:

>>> split2 0xA [0x1,0x2,0xA,0xB,0xA,0xA,0xA]
Just ([0x1,0x2],[0xB],[0xA,0xA])

Split a byte sequence on the first, second, and third occurrences of the target byte. The target is removed from the result. For example:

>>> split3 0xA [0x1,0x2,0xA,0xB,0xA,0xA,0xA]
Just ([0x1,0x2],[0xB],[],[0xA])

Split a byte sequence on the first, second, third, and fourth occurrences of the target byte. The target is removed from the result. For example:

>>> split4 0xA [0x1,0x2,0xA,0xB,0xA,0xA,0xA]
Just ([0x1,0x2],[0xB],[],[],[])

O(n) The intercalate function takes a separator Bytes and a list of Bytes and concatenates the list elements by interspersing the separator between each element.

Count the number of times the byte appears in the sequence.

Is the first argument a prefix of the second argument?

Is the first argument a suffix of the second argument?

O(n) Return the suffix of the second string if its prefix matches the entire first string.

O(n) Return the suffix of the second string if its prefix matches the entire first string. Otherwise, return the second string unchanged.

O(n) Return the prefix of the second string if its suffix matches the entire first string.

O(n) Return the prefix of the second string if its suffix matches the entire first string. Otherwise, return the second string unchanged.

Find the longest string which is a prefix of both arguments.

O(n) Variant of stripPrefix that takes a NUL-terminated C String as the prefix to test for.

Does the byte sequence begin with the given byte? False if the byte sequence is empty.

Does the byte sequence end with the given byte? False if the byte sequence is empty.

Is the byte sequence, when interpreted as ISO-8859-1-encoded text, a singleton whose element matches the character?

Is the byte sequence, when interpreted as ISO-8859-1-encoded text, a doubleton whose elements match the characters?

Is the byte sequence, when interpreted as ISO-8859-1-encoded text, a tripleton whose elements match the characters?

Is the byte sequence, when interpreted as ISO-8859-1-encoded text, a quadrupleton whose elements match the characters?

Is the byte sequence, when interpreted as ISO-8859-1-encoded text, a quintupleton whose elements match the characters?

Is the byte sequence, when interpreted as ISO-8859-1-encoded text, a sextupleton whose elements match the characters?

Is the byte sequence, when interpreted as ISO-8859-1-encoded text, a septupleton whose elements match the characters?

Is the byte sequence, when interpreted as ISO-8859-1-encoded text, an octupleton whose elements match the characters?

Is the byte sequence equal to the NUL-terminated C String? The C string must be a constant.

Hash byte sequence with 32-bit variant of FNV-1a.

Hash byte sequence with 64-bit variant of FNV-1a.

Take the first n bytes from the argument. Precondition: n ≤ len

Drop the first n bytes from the argument. Precondition: n ≤ len

Index into the byte sequence at the given position. This index must be less than the length.

Copy the byte sequence into a mutable buffer. The buffer must have enough space to accomodate the byte sequence, but this this is not checked.

Yields a pinned byte sequence whose contents are identical to those of the original byte sequence. If the ByteArray backing the argument was already pinned, this simply aliases the argument and does not perform any copying.

Yields a pointer to the beginning of the byte sequence. It is only safe to call this on a Bytes backed by a pinned ByteArray.

Touch the byte array backing the byte sequence. This sometimes needed after calling contents so that the ByteArray does not get garbage collected.

Convert the sliced Bytes to an unsliced ByteArray. This reuses the array backing the sliced Bytes if the slicing metadata implies that all of the bytes are used. Otherwise, it makes a copy.

Variant of toByteArray that unconditionally makes a copy of the array backing the sliced Bytes even if the original array could be reused. Prefer toByteArray.

Convert a String consisting of only characters in the ASCII block to a byte sequence. Any character with a codepoint above U+007F is replaced by U+0000.

Convert a String consisting of only characters representable by ISO-8859-1. These are encoded with ISO-8859-1. Any character with a codepoint above U+00FF is replace an unspecified byte.

Create a slice of Bytes that spans the entire argument array.

Interpret a byte sequence as text encoded by ISO-8859-1.

Copy a primitive string literal into managed memory.

Read Bytes directly from the specified Handle. The resulting Bytes are pinned. This is implemented with hGetBuf.

Read an entire file strictly into a Bytes.

Outputs Bytes to the specified Handle. This is implemented with hPutBuf.